package cn.ydw.community.util;

import com.alibaba.fastjson.JSONObject;
import org.apache.commons.lang3.StringUtils;
import org.springframework.util.DigestUtils;

import java.util.HashMap;
import java.util.Map;
import java.util.UUID;

public class CommonUtils {

    /**
     * 生成随机字符串
     */
    public static String generateUUID(){
        return UUID.randomUUID().toString().replaceAll("-","");
    }

    /**
     * MD5加密
     */
    public static String MD5(String key){
        if (StringUtils.isBlank(key)){
            return null;
        }
        return DigestUtils.md5DigestAsHex(key.getBytes());
    }
    /**
     * 生成json字符串
     */
    public static String getJSON(int code, String msg, Map<String,Object> map){
        JSONObject json = new JSONObject();
        json.put("code", code);
        json.put("msg", msg);
        if (map != null){
            for (String key: map.keySet()){
                json.put(key, map.get(key));
            }
        }
        return json.toJSONString();
    }
    public static String getJSON(int code, String msg){
        return getJSON(code, msg, null);
    }
    public static String getJSON(int code){
        return getJSON(code, null, null);
    }

}
